CN102675899A - Extraction method for green pigment of reed leaf - Google Patents
Extraction method for green pigment of reed leaf Download PDFInfo
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- CN102675899A CN102675899A CN2011100640485A CN201110064048A CN102675899A CN 102675899 A CN102675899 A CN 102675899A CN 2011100640485 A CN2011100640485 A CN 2011100640485A CN 201110064048 A CN201110064048 A CN 201110064048A CN 102675899 A CN102675899 A CN 102675899A
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- reed leaf
- extracting
- pigment
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- green
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Abstract
The invention discloses an extraction method for green pigment of reed leaf; fresh reed leaves are used as main raw materials, and then the green pigment is prepared through steps of cutting, dipping, squeezing, leaching, extracting by immersing, and concentrating under reduced pressure. According to the invention, process flows are simple; cost is low; and the extracted pigment is natural pigment, so that the pigment is featured with natural color and good dyeing property, and is mainly used as colorants for beverages, sweets, jams, cakes and so on.
Description
Technical field
The invention belongs to field of fine chemical, relate to a kind of process for extracting of pigment, be specifically related to the plain process for extracting of a kind of reed leaf green.
Background technology
Food dye is a kind of of pigment, is to make food change the foodstuff additive of original color to a certain extent.Food dye is divided into two kinds of natural and synthetic; Natural food colour is the pigment that directly from animal vegetable tissue, extracts, and is harmless, synthetic food color; Be to use the aniline dyestuff of separating in the coal tar to process as raw material; The pigment of these synthetic is because of being prone to bring out poisoning, diarrhea even cancer, and is harmful, so can not use more or need not as far as possible.Marennin is a kind of in the natural pigment, and the extraction process of existing marennin is complicated, and cost is higher, and the pigment performance of extraction is stable inadequately, and color and luster is dim.
Summary of the invention
Goal of the invention: the present invention provides a kind of extraction process the plain process for extracting of a kind of reed leaf green simple, with low cost in order to solve the deficiency of prior art, and the pigment color and luster of extraction is natural, tint permanence is good.
The technical scheme that the present invention adopts: the process for extracting that a kind of reed leaf green is plain, the plain extraction concrete steps of said reed leaf green comprise:
(1) edible ethanol that the back adds 4-5 times of quality is mashed in fresh reed leaf chopping, the pH value that adds sodium hydrate regulator solution again is 8;
(3) soak after 4-5 hour with white gauze parcel push, suction filtration, the gained filter residue is again with 2-3 ethanol lixiviate twice doubly, merging filtrates for three times obtains deep green and clarifies pigment extract;
(4) the gained extracting solution is at 40-45 ℃ of concentrating under reduced pressure, and it is plain that the gained mill base is the reed leaf green.
As preferably, described concentration of ethanol is 60-65%.
Beneficial effect: the present invention compared with prior art, its remarkable advantage is: technical process of the present invention is simple, and is with low cost, the pigment of extraction is a natural pigment, color and luster nature, tint permanence is good, mainly as the tinting material of beverage, candy, jam and cake etc.
Embodiment
Below in conjunction with specific embodiment the present invention is further described:
Embodiment 1
It is 60% edible ethanol that concentration that the back adds 4 times of quality is mashed in 10 kilograms of fresh reed leaves choppings, and the pH value that adds sodium hydrate regulator solution again is 8; Soak after 4 hours with white gauze parcel push, suction filtration, the gained filter residue is used the ethanol lixiviate twice of 2 times of amounts again, merges three filtratings and obtains deep green and clarify pigment extract; The gained extracting solution is at 40 ℃ of following concentrating under reduced pressure, and it is plain that the gained mill base is the reed leaf green.
Embodiment 2
62% edible ethanol that the back adds 4.5 times of quality is mashed in fresh reed leaf chopping, and the pH value that adds sodium hydrate regulator solution again is 8; Soak after 5 hours with white gauze parcel push, suction filtration, the gained filter residue is used the ethanol lixiviate twice of 2.5 times of amounts again, merges three filtratings and obtains deep green and clarify pigment extract; The gained extracting solution is at 45 ℃ of following concentrating under reduced pressure, and it is plain that the gained mill base is the reed leaf green.
Embodiment 3
65% edible ethanol that the back adds 5 times of quality is mashed in fresh reed leaf chopping, and the pH value that adds sodium hydrate regulator solution again is 8; Soak after 5 hours with white gauze parcel push, suction filtration, the gained filter residue is used the ethanol lixiviate twice of 3 times of amounts again, merges three filtratings and obtains deep green and clarify pigment extract; The gained extracting solution is at 45 ℃ of following concentrating under reduced pressure, and it is plain that the gained mill base is the reed leaf green.
Claims (2)
1. the plain process for extracting of a reed leaf green, it is characterized in that: the plain concrete steps of extracting of said reed leaf green comprise:
(1) edible ethanol that the back adds 4-5 times of quality is mashed in fresh reed leaf chopping, the pH value that adds sodium hydrate regulator solution again is 8;
(3) soak after 4-5 hour with white gauze parcel push, suction filtration, the ethanol lixiviate twice that the gained filter residue is doubly measured with 2-3 again, merging filtrates for three times obtains deep green and clarifies pigment extract;
(4) the gained extracting solution is at 40-45 ℃ of following concentrating under reduced pressure, and it is plain that the gained mill base is the reed leaf green.
2. according to the plain process for extracting of the said a kind of reed leaf green of claim 1, it is characterized in that: described concentration of ethanol is 60-65%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100640485A CN102675899A (en) | 2011-03-16 | 2011-03-16 | Extraction method for green pigment of reed leaf |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100640485A CN102675899A (en) | 2011-03-16 | 2011-03-16 | Extraction method for green pigment of reed leaf |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102675899A true CN102675899A (en) | 2012-09-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100640485A Pending CN102675899A (en) | 2011-03-16 | 2011-03-16 | Extraction method for green pigment of reed leaf |
Country Status (1)
| Country | Link |
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| CN (1) | CN102675899A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104397672A (en) * | 2014-12-31 | 2015-03-11 | 山东玉兔食品有限责任公司 | Preparation method of traditional Chinese rice-pudding flavor sauce |
-
2011
- 2011-03-16 CN CN2011100640485A patent/CN102675899A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104397672A (en) * | 2014-12-31 | 2015-03-11 | 山东玉兔食品有限责任公司 | Preparation method of traditional Chinese rice-pudding flavor sauce |
| CN104397672B (en) * | 2014-12-31 | 2018-03-27 | 山东玉兔食品股份有限公司 | The preparation method of rice-pudding Flavor sauce |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhou Weixin Document name: Notification that Application Deemed to be Withdrawn |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120919 |